Hacking Google Maps and Google Earth (ExtremeTech)

150 Part III — Google Map Hacks

Listing 9-2(continued)

var map;

var points = [];

var index = 0;

var infopanel;

EOF

}

sub js_onLoad

{

my @markers;

foreach my $point (@{$points})

{

push @markers,sprintf(“addmarker(%f,%f,’%s’);”,

$point->{x},

$point->{y},

$point->{title});

}

my $template = <<EOF;

function onLoad() {

if (GBrowserIsCompatible()) {

infopanel = document.getElementById(“infopanel”);

map = new GMap(document.getElementById(“map”));

map.centerAndZoom(new GPoint(-0.64,52.909444), 2);

%s

}

}

EOF

printf($template,join(“\n”,@markers));

}

sub js_addmarker

{

print <<EOF;

function addmarker(x,y,title) {

var point = new GPoint(parseFloat(x),parseFloat(y));

points.push(point);

var marker = new GMarker(point);

map.addOverlay(marker);

infopanel.innerHTML = infopanel.innerHTML +

‘<a href=”#” onClick=”movemap(‘ + index + ‘);”>’ +

title +

‘</a><br/>’;

index++;

}